Question: Who is Ferdinand II of Aragon's son-in-law?
Paraphrase: Who is the son-in-law of Ferdinand II of Aragon?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q12860 p:P1038 ?s . ?s ps:P1038 ?obj . ?s pq:P1039 wd:Q3752578 }